ONS coding system
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The ONS coding system was a hierarchical code used in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
for tabulating
census A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of stati ...
and other statistical data. ONS refers to the
Office for National Statistics The Office for National Statistics (ONS; ) is the executive office of the UK Statistics Authority, a non-ministerial department which reports directly to the Parliament of the United Kingdom, UK Parliament. Overview The ONS is responsible fo ...
. It was replaced by the GSS coding system on 1 January 2011.


Code formulation


Principal authorities

The code was constructed top down from a four character code representing a
unitary authority A unitary authority is a type of local government, local authority in New Zealand and the United Kingdom. Unitary authorities are responsible for all local government functions within its area or performing additional functions that elsewhere are ...
or two-tier county and district.


Electoral wards and output areas

Local government wards had a two-letter code within their local authority, and census output area an additional four digits within a ward. The authority and ward codes were recognised by
Eurostat Eurostat ("European Statistical Office"; also DG ESTAT) is a department of the European Commission ( Directorate-General), located in the Kirchberg quarter of Luxembourg City, Luxembourg. Eurostat's main responsibilities are to provide statist ...
as local administrative unit code levels 1 and 2 within the NUTS system.


Civil parishes

An overlapping system encoded civil parish areas. Parishes were represented by an additional three digits within their local authority:


List of codes for counties and districts

The codes for counties and districts were as follows. Also showing NUTS(3) codes thus: (UKH12)


Greater London

These codes became active following local government changes in 1986. * 00AA (UKI11)   
City of London The City of London, also known as ''the City'', is a Ceremonial counties of England, ceremonial county and Districts of England, local government district with City status in the United Kingdom, city status in England. It is the Old town, his ...
* 00AB (UKI21)    Barking and Dagenham * 00AC (UKI23)    Barnet * 00AD (UKI21)    Bexley * 00AE (UKI23)    Brent * 00AF (UKI22)   
Bromley Bromley is a large town in Greater London, England, within the London Borough of Bromley. It is southeast of Charing Cross, and had an estimated population of 88,000 as of 2023. Originally part of Kent, Bromley became a market town, charte ...
* 00AG (UKI11)    Camden * 00AH (UKI22)   
Croydon Croydon is a large town in South London, England, south of Charing Cross. Part of the London Borough of Croydon, a Districts of England, local government district of Greater London; it is one of the largest commercial districts in Greater Lond ...
* 00AJ (UKI23)   
Ealing Ealing () is a district in west London (sub-region), west London, England, west of Charing Cross in the London Borough of Ealing. It is the administrative centre of the borough and is identified as a major metropolitan centre in the London Pl ...
* 00AK (UKI21)    Enfield * 00AL (UKI21)    Greenwich * 00AM (UKI12)    Hackney * 00AN (UKI11)    Hammersmith and Fulham * 00AP (UKI12)    Haringey * 00AQ (UKI23)    Harrow * 00AR (UKI21)    Havering * 00AS (UKI23)    Hillingdon * 00AT (UKI23)   
Hounslow Hounslow ( ) is a large suburban district of West London, England, west-southwest of Charing Cross. It is the administrative centre of the London Borough of Hounslow, and is identified in the London Plan as one of the 14 metropolitan cen ...
* 00AU (UKI12)   
Islington Islington ( ) is an inner-city area of north London, England, within the wider London Borough of Islington. It is a mainly residential district of Inner London, extending from Islington's #Islington High Street, High Street to Highbury Fields ...
* 00AW (UKI11)    Kensington and Chelsea * 00AX (UKI22)    Kingston upon Thames * 00AY (UKI12)    Lambeth * 00AZ (UKI12)    Lewisham * 00BA (UKI22)    Merton * 00BB (UKI12)    Newham * 00BC (UKI21)    Redbridge * 00BD (UKI23)    Richmond upon Thames * 00BE (UKI12)    Southwark * 00BF (UKI22)    Sutton * 00BG (UKI12)    Tower Hamlets * 00BH (UKI21)    Waltham Forest * 00BJ (UKI11)   
Wandsworth Wandsworth Town () is a district of south London, within the London Borough of Wandsworth southwest of Charing Cross. The area is identified in the London Plan as one of 35 major centres in Greater London. Toponymy Wandsworth takes its name ...
* 00BK (UKI11)   
Westminster Westminster is the main settlement of the City of Westminster in Central London, Central London, England. It extends from the River Thames to Oxford Street and has many famous landmarks, including the Palace of Westminster, Buckingham Palace, ...


Metropolitan counties

These codes became active following local government changes in 1986. *
Greater Manchester Greater Manchester is a ceremonial county in North West England. It borders Lancashire to the north, Derbyshire and West Yorkshire to the east, Cheshire to the south, and Merseyside to the west. Its largest settlement is the city of Manchester. ...
districts ** 00BL (UKD32)    Bolton ** 00BM (UKD32)    Bury ** 00BN (UKD31)   
Manchester Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92&nbs ...
** 00BP (UKD32)    Oldham ** 00BQ (UKD32)    Rochdale ** 00BR (UKD31)   
Salford Salford ( ) is a City status in the United Kingdom, city in Greater Manchester, England, on the western bank of the River Irwell which forms its boundary with Manchester city centre. Landmarks include the former Salford Town Hall, town hall, ...
** 00BS (UKD31)   
Stockport Stockport is a town in Greater Manchester, England, south-east of Manchester, south-west of Ashton-under-Lyne and north of Macclesfield. The River Goyt, Rivers Goyt and River Tame, Greater Manchester, Tame merge to create the River Mersey he ...
** 00BT (UKD31)   
Tameside Tameside is a metropolitan borough of Greater Manchester, England, named after the River Tame, Greater Manchester, River Tame, which flows through it, and includes the towns of Ashton-under-Lyne, Audenshaw, Denton, Greater Manchester, Denton, D ...
** 00BU (UKD31)    Trafford ** 00BW (UKD32)    Wigan * Merseyside districts ** 00BX (UKD51)    Knowsley ** 00BY (UKD52)   
Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
** 00BZ (UKD51)    St Helens ** 00CA (UKD53)    Sefton ** 00CB (UKD54)    Wirral * South Yorkshire districts ** 00CC (UKE31)   
Barnsley Barnsley () is a market town in South Yorkshire, England. It is the main settlement of the Metropolitan Borough of Barnsley and the fourth largest settlement in South Yorkshire. The town's population was 71,422 in 2021, while the wider boroug ...
** 00CE (UKE31)   
Doncaster Doncaster ( ) is a city status in the United Kingdom, city in South Yorkshire, England. Named after the River Don, Yorkshire, River Don, it is the administrative centre of the City of Doncaster metropolitan borough, and is the second largest se ...
** 00CF (UKE31)    Rotherham ** 00CG (UKE32)   
Sheffield Sheffield is a city in South Yorkshire, England, situated south of Leeds and east of Manchester. The city is the administrative centre of the City of Sheffield. It is historically part of the West Riding of Yorkshire and some of its so ...
*
Tyne and Wear Tyne and Wear () is a Ceremonial counties of England, ceremonial county in North East England. It borders Northumberland to the north and County Durham to the south, and the largest settlement is the city of Newcastle upon Tyne. The county is ...
districts ** 00CH (UKC22)    Gateshead ** 00CJ (UKC22)   
Newcastle-upon-Tyne Newcastle upon Tyne, or simply Newcastle ( , Received Pronunciation, RP: ), is a City status in the United Kingdom, cathedral city and metropolitan borough in Tyne and Wear, England. It is England's northernmost metropolitan borough, located o ...
** 00CK (UKC22)    North Tyneside ** 00CL (UKC22)    South Tyneside ** 00CM (UKC23)    Sunderland * West Midlands districts ** 00CN (UKG31)   
Birmingham Birmingham ( ) is a City status in the United Kingdom, city and metropolitan borough in the metropolitan county of West Midlands (county), West Midlands, within the wider West Midlands (region), West Midlands region, in England. It is the Lis ...
** 00CQ (UKG33)    Coventry ** 00CR (UKG34)   
Dudley Dudley ( , ) is a market town in the West Midlands, England, southeast of Wolverhampton and northwest of Birmingham. Historically part of Worcestershire, the town is the administrative centre of the Metropolitan Borough of Dudley. In the ...
** 00CS (UKG34)    Sandwell ** 00CT (UKG32)    Solihull ** 00CU (UKG35)    Walsall ** 00CW (UKG35)   
Wolverhampton Wolverhampton ( ) is a city and metropolitan borough in the West Midlands (county), West Midlands of England. Located around 12 miles (20 km) north of Birmingham, it forms the northwestern part of the West Midlands conurbation, with the towns of ...
* West Yorkshire districts ** 00CX (UKE41)   
Bradford Bradford is a city status in the United Kingdom, city in West Yorkshire, England. It became a municipal borough in 1847, received a city charter in 1897 and, since the Local Government Act 1972, 1974 reform, the city status in the United Kingdo ...
** 00CY (UKE43)    Calderdale ** 00CZ (UKE43)    Kirklees ** 00DA (UKE42)   
Leeds Leeds is a city in West Yorkshire, England. It is the largest settlement in Yorkshire and the administrative centre of the City of Leeds Metropolitan Borough, which is the second most populous district in the United Kingdom. It is built aro ...
** 00DB (UKE43)    Wakefield


Non-hierarchical codes for Greater London and metropolitan counties

* 1B    Inner London * 1C    Outer London * 2A   
Greater Manchester Greater Manchester is a ceremonial county in North West England. It borders Lancashire to the north, Derbyshire and West Yorkshire to the east, Cheshire to the south, and Merseyside to the west. Its largest settlement is the city of Manchester. ...
* 2B    Merseyside * 2C    South Yorkshire * 2D   
Tyne and Wear Tyne and Wear () is a Ceremonial counties of England, ceremonial county in North East England. It borders Northumberland to the north and County Durham to the south, and the largest settlement is the city of Newcastle upon Tyne. The county is ...
* 2E    West Midlands * 2F    West Yorkshire


Unitary authorities established in the 1990s

These codes became active following local government changes the 1990s. * North East England region ** 00EB (UKC11)   
Hartlepool Hartlepool ( ) is a seaside resort, seaside and port town in County Durham, England. It is governed by a unitary authority borough Borough of Hartlepool, named after the town. The borough is part of the devolved Tees Valley area with an estimat ...
** 00EC (UKC12)    Middlesbrough ** 00EE (UKC12)    Redcar and Cleveland ** 00EF (UKC11)    Stockton-on-Tees ** 00EH (UKC13)    Darlington * North West England region ** 00ET (UKD21)    Halton ** 00EU (UKD21)    Warrington ** 00EX (UKD41)    Blackburn with Darwen ** 00EY (UKD42)   
Blackpool Blackpool is a seaside town in Lancashire, England. It is located on the Irish Sea coast of the Fylde peninsula, approximately north of Liverpool and west of Preston, Lancashire, Preston. It is the main settlement in the Borough of Blackpool ...
* Yorkshire and the Humber region ** 00FA (UKE11)   
Kingston upon Hull Kingston upon Hull, usually shortened to Hull, is a historic maritime city and unitary authorities of England, unitary authority area in the East Riding of Yorkshire, England. It lies upon the River Hull at its confluence with the Humber Est ...
** 00FB (UKE12)    East Riding of Yorkshire ** 00FC (UKE13)    North East Lincolnshire ** 00FD (UKE13)   
North Lincolnshire North Lincolnshire is a Unitary authorities of England, unitary authority area with Borough status in the United Kingdom, borough status in Lincolnshire, England. At the 2011 United Kingdom census, 2011 Census, it had a population of 167,446. T ...
** 00FF (UKE21)   
York York is a cathedral city in North Yorkshire, England, with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss. It has many historic buildings and other structures, such as a Yor ...
* East Midlands region ** 00FK (UKF11)   
Derby Derby ( ) is a City status in the United Kingdom, city and Unitary authorities of England, unitary authority area on the River Derwent, Derbyshire, River Derwent in Derbyshire, England. Derbyshire is named after Derby, which was its original co ...
** 00FN (UKF21)    Leicester ** 00FP (UKF22)    Rutland ** 00FY (UKF14)   
Nottingham Nottingham ( , East Midlands English, locally ) is a City status in the United Kingdom, city and Unitary authorities of England, unitary authority area in Nottinghamshire, East Midlands, England. It is located south-east of Sheffield and nor ...
* West Midlands region ** 00GA (UKG11)    Herefordshire ** 00GF (UKG21)    Telford and Wrekin ** 00GL (UKG23)   
Stoke-on-Trent Stoke-on-Trent (often abbreviated to Stoke) is a city and Unitary authorities of England, unitary authority area in Staffordshire, England. It has an estimated population of 259,965 as of 2022, making it the largest settlement in Staffordshire ...
* South West England region ** 00HA (UKK12)    Bath and North East Somerset ** 00HB (UKK11)   
Bristol Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by t ...
** 00HC (UKK12)   
North Somerset North Somerset is a unitary authorities of England, unitary authority in the ceremonial county of Somerset, England. The council is based in Weston-super-Mare, the area's largest town. The district also contains the towns of Clevedon, Nailsea ...
** 00HD (UKK12)    South Gloucestershire ** 00HG (UKK41)   
Plymouth Plymouth ( ) is a port city status in the United Kingdom, city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers River Plym, Plym and River Tamar, Tamar, about southwest of Exeter and ...
** 00HH (UKK42)    Torbay ** 00HN (UKK21)    Bournemouth ** 00HP (UKK21)    Poole ** 00HX (UKK14)    Swindon *
East of England East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sunrise, Sun rises on the Earth. Etymology As in other languages, the word is formed from the fact ...
region ** 00JA (UKH11)    Peterborough ** 00KA (UKH21)    Luton ** 00KF (UKH31)    Southend-on-Sea ** 00KG (UKH32)    Thurrock * South East England region ** 00LC (UKJ41)    Medway ** 00MA (UKJ11)    Bracknell Forest ** 00MB (UKJ11)    West Berkshire ** 00MC (UKJ11)    Reading ** 00MD (UKJ11)    Slough ** 00ME (UKJ11)    Windsor and Maidenhead ** 00MF (UKJ11)    Wokingham ** 00MG (UKJ12)    Milton Keynes ** 00ML (UKJ21)    Brighton and Hove ** 00MR (UKJ31)    Portsmouth ** 00MS (UKJ32)    Southampton ** 00MW (UKJ34)   
Isle of Wight The Isle of Wight (Help:IPA/English, /waɪt/ Help:Pronunciation respelling key, ''WYTE'') is an island off the south coast of England which, together with its surrounding uninhabited islets and Skerry, skerries, is also a ceremonial county. T ...


Unitary authorities established in 2009

These codes became active following local government changes in 2009. * 00KB   Bedford * 00KC   Central Bedfordshire * 00EQ   Cheshire East * 00EW   Cheshire West and Chester * 00HE   Cornwall * 00HF   Isles of Scilly * 00EJ   County Durham * 00EM   Northumberland * 00GG   Shropshire * 00HY   Wiltshire


Non-metropolitan counties

* 08    Avon ** 08UB    Bath ** 08UC   
Bristol Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by t ...
** 08UD    Kingswood ** 08UE    Northavon ** 08UF    Wansdyke ** 08UG    Woodspring * 09 (UKH22)   
Bedfordshire Bedfordshire (; abbreviated ''Beds'') is a Ceremonial County, ceremonial county in the East of England. It is bordered by Northamptonshire to the north, Cambridgeshire to the north-east, Hertfordshire to the south and the south-east, and Buckin ...
** 09UB    Luton ** 09UC    Mid Bedfordshire ** 09UD   
Bedford Bedford is a market town in Bedfordshire, England. At the 2011 Census, the population was 106,940. Bedford is the county town of Bedfordshire and seat of the Borough of Bedford local government district. Bedford was founded at a ford (crossin ...
** 09UE    South Bedfordshire * 10   
Berkshire Berkshire ( ; abbreviated ), officially the Royal County of Berkshire, is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Oxfordshire to the north, Buckinghamshire to the north-east, Greater London ...
** 10UB    Bracknell Forest ** 10UC    Newbury ** 10UD    Reading ** 10UE    Slough ** 10UF    Windsor and Maidenhead ** 10UG    Wokingham * 11 (UKJ13)   
Buckinghamshire Buckinghamshire (, abbreviated ''Bucks'') is a Ceremonial counties of England, ceremonial county in South East England and one of the home counties. It is bordered by Northamptonshire to the north, Bedfordshire to the north-east, Hertfordshir ...
** 11UB    Aylesbury Vale ** 11UC    Chiltern ** 11UD    Milton Keynes ** 11UE    South Bucks ** 11UF    Wycombe * 12 (UKH12)   
Cambridgeshire Cambridgeshire (abbreviated Cambs.) is a Ceremonial counties of England, ceremonial county in the East of England and East Anglia. It is bordered by Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfor ...
** 12UB   
Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
** 12UC    East Cambridgeshire ** 12UD    Fenland ** 12UE    Huntingdonshire ** 12UF    Peterborough ** 12UG    South Cambridgeshire * 13 (UKD22)   
Cheshire Cheshire ( ) is a Ceremonial counties of England, ceremonial county in North West England. It is bordered by Merseyside to the north-west, Greater Manchester to the north-east, Derbyshire to the east, Staffordshire to the south-east, and Shrop ...
** 13UB    Chester ** 13UC    Congleton ** 13UD    Crewe and Nantwich ** 13UE    Ellesmere Port and Neston ** 13UF    Halton ** 13UG   
Macclesfield Macclesfield () is a market town and civil parish in the unitary authority of Cheshire East, Cheshire, England. It is sited on the River Bollin and the edge of the Cheshire Plain, with Macclesfield Forest to its east; the town lies south of Ma ...
** 13UH    Vale Royal ** 13UJ    Warrington * 14   
Cleveland Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located along the southern shore of Lake Erie, it is situated across the Canada–U.S. maritime border and approximately west of the Ohio-Pennsylvania st ...
** 14UB   
Hartlepool Hartlepool ( ) is a seaside resort, seaside and port town in County Durham, England. It is governed by a unitary authority borough Borough of Hartlepool, named after the town. The borough is part of the devolved Tees Valley area with an estimat ...
** 14UC    Langbaurgh-on-Tees ** 14UD    Middlesbrough ** 14UE    Stockton-on-Tees * 15 (UKK30)   
Cornwall Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, ...
and Scilly ** 15UB    Caradon ** 15UC    Carrick ** 15UD    Kerrier ** 15UE    North Cornwall ** 15UF    Penwith ** 15UG    Restormel ** 15UH    Isles of Scilly * 16    Cumbria ** 16UB (UKD11)    Allerdale ** 16UC (UKD11)    Barrow-in-Furness ** 16UD (UKD12)    Carlisle ** 16UE (UKD11)    Copeland ** 16UF (UKD12)    Eden ** 16UG (UKD12)    South Lakeland * 17    Derbyshire ** 17UB (UKF13)    Amber Valley ** 17UC (UKF12)    Bolsover ** 17UD (UKF12)    Chesterfield ** 17UE   
Derby Derby ( ) is a City status in the United Kingdom, city and Unitary authorities of England, unitary authority area on the River Derwent, Derbyshire, River Derwent in Derbyshire, England. Derbyshire is named after Derby, which was its original co ...
** 17UF (UKF13)    Derbyshire Dales ** 17UG (UKF13)    Erewash ** 17UH (UKF13)    High Peak ** 17UJ (UKF12)    North East Derbyshire ** 17UK (UKF13)   
South Derbyshire South Derbyshire is a Non-metropolitan district, local government district in Derbyshire, England. The district covers the towns of Melbourne, Derbyshire, Melbourne and Swadlincote as well as numerous villages and hamlets such as Hilton, Derbys ...
* 18 (UKK43)   
Devon Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, the English Channel to the south, and Cornwall to the west ...
** 18UB    East Devon ** 18UC    Exeter ** 18UD   
Mid Devon Mid Devon is a local government district in Devon Devon ( ; historically also known as Devonshire , ) is a ceremonial county in South West England. It is bordered by the Bristol Channel to the north, Somerset and Dorset to the east, t ...
** 18UE   
North Devon North Devon is a Non-metropolitan district, local government district in Devon, England. Its council is based just outside Barnstaple, the district's largest town. The district also includes the towns of Ilfracombe, Lynton and Lynmouth and Sout ...
** 19UF   
Plymouth Plymouth ( ) is a port city status in the United Kingdom, city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers River Plym, Plym and River Tamar, Tamar, about southwest of Exeter and ...
** 18UG    South Hams ** 18UH    Teignbridge ** 19UJ    Torbay ** 18UK    Torridge ** 18UL    West Devon * 19 (UKK22)   
Dorset Dorset ( ; Archaism, archaically: Dorsetshire , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by Somerset to the north-west, Wiltshire to the north and the north-east, Hampshire to the east, t ...
** 19UB    Bournemouth ** 19UC    Christchurch ** 19UD    East Dorset ** 19UE    North Dorset ** 19UF    Poole ** 19UG    Purbeck ** 19UH    West Dorset ** 19UJ    Weymouth and Portland * 20 (UKC14)    County Durham ** 20UB    Chester-le-Street ** 20UC    Darlington ** 20UD    Derwentside ** 20UE    Durham ** 20UF    Easington ** 20UG    Sedgefield ** 20UH    Teesdale ** 20UJ    Wear Valley * 21 (UKJ22)    East Sussex ** 21UB   
Brighton Brighton ( ) is a seaside resort in the city status in the United Kingdom, city of Brighton and Hove, East Sussex, England, south of London. Archaeological evidence of settlement in the area dates back to the Bronze Age Britain, Bronze Age, R ...
** 21UC    Eastbourne ** 21UD   
Hastings Hastings ( ) is a seaside town and Borough status in the United Kingdom, borough in East Sussex on the south coast of England, east of Lewes and south east of London. The town gives its name to the Battle of Hastings, which took place to th ...
** 21UE    Hove ** 21UF    Lewes ** 21UG    Rother ** 21UH    Wealden * 22 (UKH33)   
Essex Essex ( ) is a Ceremonial counties of England, ceremonial county in the East of England, and one of the home counties. It is bordered by Cambridgeshire and Suffolk to the north, the North Sea to the east, Kent across the Thames Estuary to the ...
** 22UB    Basildon ** 22UC    Braintree ** 22UD    Brentwood ** 22UE    Castle Point ** 22UF    Chelmsford ** 22UG   
Colchester Colchester ( ) is a city in northeastern Essex, England. It is the second-largest settlement in the county, with a population of 130,245 at the 2021 United Kingdom census, 2021 Census. The demonym is ''Colcestrian''. Colchester occupies the ...
** 22UH    Epping Forest ** 22UJ   
Harlow Harlow is a town and local government district located in the west of Essex, England. Founded as a Planned community, new town in 1947, it is situated on the border with Hertfordshire, and occupies a large area of land on the south bank of the ...
** 22UK   
Maldon Maldon (, locally ) is a town and civil parish on the Blackwater Estuary in Essex, England. It is the seat of the Maldon District and starting point of the Chelmer and Blackwater Navigation. It is known for Maldon Sea Salt which is prod ...
** 22UL    Rochford ** 22UM    Southend-on-Sea ** 22UN    Tendring ** 22UP    Thurrock ** 22UQ    Uttlesford * 23 (UKK13)    Gloucestershire ** 23UB   
Cheltenham Cheltenham () is a historic spa town and borough adjacent to the Cotswolds in Gloucestershire, England. Cheltenham became known as a health and holiday spa town resort following the discovery of mineral springs in 1716, and claims to be the mo ...
** 23UC    Cotswold ** 23UD    Forest of Dean ** 23UE    Gloucester ** 23UF    Stroud ** 23UG    Tewkesbury * 24 (UKJ33)   
Hampshire Hampshire (, ; abbreviated to Hants.) is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Berkshire to the north, Surrey and West Sussex to the east, the Isle of Wight across the Solent to the south, ...
** 24UB    Basingstoke and Deane ** 24UC    East Hampshire ** 24UD    Eastleigh ** 24UE   
Fareham Fareham ( ) is a market town at the north-west tip of Portsmouth Harbour, between the cities of Portsmouth and Southampton in south east Hampshire, England. It gives its name to the Borough of Fareham. It was historically an important manufac ...
** 24UF    Gosport ** 24UG    Hart ** 24UH    Havant ** 24UJ    New Forest ** 24UK    Portsmouth ** 24UL    Rushmoor ** 24UM    Southampton ** 24UN    Test Valley ** 24UP    Winchester * 25    Hereford and Worcester ** 25UB    Bromsgrove ** 25UC    Hereford ** 25UD    Leominster ** 25UE    Malvern Hills ** 25UF    Redditch ** 25UG    South Herefordshire ** 25UH    Worcester ** 25UJ    Wyre Forest ** 25UK   
Wychavon Wychavon () is a local government district in Worcestershire, England. The largest towns therein are Evesham and Droitwich Spa; the council is based in the town of Pershore. The district also includes numerous villages and surrounding rural ...
* 26 (UKH23)    Hertfordshire ** 26UB    Broxbourne ** 26UC    Dacorum ** 26UD    East Hertfordshire ** 26UE    Hertsmere ** 26UF    North Hertfordshire ** 26UG    St Albans ** 26UH    Stevenage ** 26UJ    Three Rivers ** 26UK    Watford ** 26UL    Welwyn Hatfield * 27    Humberside ** 27UB    Boothferry ** 27UC    Cleethorpes ** 27UD    East Yorkshire ** 27UE    Beverley ** 27UF    Glanford ** 27UG    Holderness ** 27UH    Great Grimsby ** 27UJ   
Kingston upon Hull Kingston upon Hull, usually shortened to Hull, is a historic maritime city and unitary authorities of England, unitary authority area in the East Riding of Yorkshire, England. It lies upon the River Hull at its confluence with the Humber Est ...
** 27UK   
Scunthorpe Scunthorpe () is an industrial town in Lincolnshire, England, and the county's third most populous settlement after Lincoln, England, Lincoln and Grimsby, with a population of 81,286 in 2021. It is the administrative centre and largest settleme ...
* 28   
Isle of Wight The Isle of Wight (Help:IPA/English, /waɪt/ Help:Pronunciation respelling key, ''WYTE'') is an island off the south coast of England which, together with its surrounding uninhabited islets and Skerry, skerries, is also a ceremonial county. T ...
county ** 28UB    Medina ** 28UC    South Wight * 29 (UKJ42)    Kent ** 29UB    Ashford ** 29UC   
Canterbury Canterbury (, ) is a City status in the United Kingdom, city and UNESCO World Heritage Site, in the county of Kent, England; it was a county borough until 1974. It lies on the River Stour, Kent, River Stour. The city has a mild oceanic climat ...
** 29UD   
Dartford Dartford is the principal town in the Borough of Dartford, Kent, England. It is located south-east of Central London and is situated adjacent to the London Borough of Bexley to its west. To its north, across the Thames Estuary, is Thurrock in ...
** 29UE    Dover ** 29UF    Gillingham ** 29UG    Gravesham ** 29UH   
Maidstone Maidstone is the largest Town status in the United Kingdom, town in Kent, England, of which it is the county town. Maidstone is historically important and lies east-south-east of London. The River Medway runs through the centre of the town, l ...
** 29UJ    Rochester upon Medway ** 29UK    Sevenoaks ** 29UL    Shepway ** 29UM    Swale ** 29UN    Thanet ** 29UP    Tonbridge and Malling ** 29UQ    Tunbridge Wells * 30 (UKD43)   
Lancashire Lancashire ( , ; abbreviated ''Lancs'') is a ceremonial county in North West England. It is bordered by Cumbria to the north, North Yorkshire and West Yorkshire to the east, Greater Manchester and Merseyside to the south, and the Irish Sea to ...
** 30UB    Blackburn ** 30UC   
Blackpool Blackpool is a seaside town in Lancashire, England. It is located on the Irish Sea coast of the Fylde peninsula, approximately north of Liverpool and west of Preston, Lancashire, Preston. It is the main settlement in the Borough of Blackpool ...
** 30UD    Burnley ** 30UE   
Chorley Chorley is a town and the administrative centre of the wider Borough of Chorley in Lancashire, England, north of Wigan, south west of Blackburn, north west of Bolton, south of Preston and north west of Manchester. The town's wealth ca ...
** 30UF    Fylde ** 30UG    Hyndburn ** 30UH    Lancaster ** 30UJ    Pendle ** 30UK    Preston ** 30UL    Ribble Valley ** 30UM    Rossendale ** 30UN    South Ribble ** 30UP    West Lancashire ** 30UQ    Wyre * 31 (UKF22)   
Leicestershire Leicestershire ( ) is a Ceremonial counties of England, ceremonial county in the East Midlands of England. It is bordered by Derbyshire, Nottinghamshire and Lincolnshire to the north, Rutland to the east, Northamptonshire to the south-east, Warw ...
** 31UB    Blaby ** 31UC    Charnwood ** 31UD    Harborough ** 31UE    Hinckley and Bosworth ** 31UF    Leicester ** 31UG    Melton ** 31UH    North West Leicestershire ** 31UJ    Oadby and Wigston ** 31UK    Rutland * 32 (UKF30)   
Lincolnshire Lincolnshire (), abbreviated ''Lincs'', is a Ceremonial counties of England, ceremonial county in the East Midlands and Yorkshire and the Humber regions of England. It is bordered by the East Riding of Yorkshire across the Humber estuary to th ...
** 32UB   
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
** 32UC    East Lindsey ** 32UD    Lincoln ** 32UE    North Kesteven ** 32UF    South Holland ** 32UG    South Kesteven ** 32UH    West Lindsey * 33 (UKH13)   
Norfolk Norfolk ( ) is a Ceremonial counties of England, ceremonial county in England, located in East Anglia and officially part of the East of England region. It borders Lincolnshire and The Wash to the north-west, the North Sea to the north and eas ...
** 33UB    Breckland ** 33UC    Broadland ** 33UD    Great Yarmouth ** 33UE    King's Lynn and West Norfolk ** 33UF    North Norfolk ** 33UG   
Norwich Norwich () is a cathedral city and district of the county of Norfolk, England, of which it is the county town. It lies by the River Wensum, about north-east of London, north of Ipswich and east of Peterborough. The population of the Norwich ...
** 33UH    South Norfolk * 34 (UKF23)    Northamptonshire ** 34UB    Corby ** 34UC    Daventry ** 34UD    East Northamptonshire ** 34UE    Kettering ** 34UF    Northampton ** 34UG    South Northamptonshire ** 34UH    Wellingborough * 35 (UKC21)    Northumberland ** 35UB   
Alnwick Alnwick ( ) is a market town in Northumberland, England, of which it is the traditional county town. The population at the 2011 Census was 8,116. The town is south of Berwick-upon-Tweed and the Scottish border, inland from the North Sea ...
** 35UC    Berwick-upon-Tweed ** 35UD    Blyth Valley ** 35UE    Castle Morpeth ** 35UF    Tynedale ** 35UG    Wansbeck * 36 (UKE22)   
North Yorkshire North Yorkshire is a Ceremonial counties of England, ceremonial county in Northern England.The Unitary authorities of England, unitary authority areas of City of York, York and North Yorkshire (district), North Yorkshire are in Yorkshire and t ...
** 36UB    Craven ** 36UC    Hambleton ** 36UD   
Harrogate Harrogate ( ) is a spa town and civil parish in the North Yorkshire District, district and North Yorkshire, county of North Yorkshire, England. Historic counties of England, Historically in the West Riding of Yorkshire, the town is a tourist de ...
** 36UE    Richmondshire ** 36UF    Ryedale ** 36UG    Scarborough ** 36UH    Selby ** 36UJ   
York York is a cathedral city in North Yorkshire, England, with Roman Britain, Roman origins, sited at the confluence of the rivers River Ouse, Yorkshire, Ouse and River Foss, Foss. It has many historic buildings and other structures, such as a Yor ...
* 37   
Nottinghamshire Nottinghamshire (; abbreviated ''Notts.'') is a ceremonial county in the East Midlands of England. The county is bordered by South Yorkshire to the north-west, Lincolnshire to the east, Leicestershire to the south, and Derbyshire to the west. Th ...
** 37UB (UKF15)    Ashfield ** 37UC (UKF15)    Bassetlaw ** 37UD (UKF16)    Broxtowe ** 37UE (UKF16)    Gedling ** 37UF (UKF15)    Mansfield ** 37UG (UKF15)    Newark and Sherwood ** 37UH   
Nottingham Nottingham ( , East Midlands English, locally ) is a City status in the United Kingdom, city and Unitary authorities of England, unitary authority area in Nottinghamshire, East Midlands, England. It is located south-east of Sheffield and nor ...
** 37UJ (UKF16)    Rushcliffe * 38 (UKJ14)   
Oxfordshire Oxfordshire ( ; abbreviated ''Oxon'') is a ceremonial county in South East England. The county is bordered by Northamptonshire and Warwickshire to the north, Buckinghamshire to the east, Berkshire to the south, and Wiltshire and Glouceste ...
** 38UB    Cherwell ** 38UC   
Oxford Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town. The city is home to the University of Oxford, the List of oldest universities in continuou ...
** 38UD    South Oxfordshire ** 38UE    Vale of White Horse ** 38UF    West Oxfordshire * 39 (UKG22)    Shropshire ** 39UB   
Bridgnorth Bridgnorth is a market town and civil parish in Shropshire, England. The River Severn splits it into High Town and Low Town, the upper town on the right bank and the lower on the left bank of the River Severn. The population at the United Kingd ...
** 39UC    North Shropshire ** 39UD    Oswestry ** 39UE    Shrewsbury and Atcham ** 39UF    South Shropshire ** 39UG    The Wrekin * 40 (UKK23)   
Somerset Somerset ( , ), Archaism, archaically Somersetshire ( , , ) is a Ceremonial counties of England, ceremonial county in South West England. It is bordered by the Bristol Channel, Gloucestershire, and Bristol to the north, Wiltshire to the east ...
** 40UB    Mendip ** 40UC    Sedgemoor ** 40UD    South Somerset ** 40UE    Taunton Deane ** 40UF    West Somerset * 41 (UKG24)    Staffordshire ** 41UB    Cannock Chase ** 41UC    East Staffordshire ** 41UD    Lichfield ** 41UE   
Newcastle-under-Lyme Newcastle-under-Lyme is a market town and the administrative centre of the Borough of Newcastle-under-Lyme in Staffordshire, England. It is adjacent to the city of Stoke-on-Trent. At the 2021 United Kingdom census, 2021 census, the population ...
** 41UF    South Staffordshire ** 41UG    Stafford ** 41UH    Staffordshire Moorlands ** 41UJ   
Stoke-on-Trent Stoke-on-Trent (often abbreviated to Stoke) is a city and Unitary authorities of England, unitary authority area in Staffordshire, England. It has an estimated population of 259,965 as of 2022, making it the largest settlement in Staffordshire ...
** 41UK    Tamworth * 42 (UKH14)   
Suffolk Suffolk ( ) is a ceremonial county in the East of England and East Anglia. It is bordered by Norfolk to the north, the North Sea to the east, Essex to the south, and Cambridgeshire to the west. Ipswich is the largest settlement and the county ...
** 42UB    Babergh ** 42UC    Forest Heath ** 42UD   
Ipswich Ipswich () is a port town and Borough status in the United Kingdom, borough in Suffolk, England. It is the county town, and largest in Suffolk, followed by Lowestoft and Bury St Edmunds, and the third-largest population centre in East Anglia, ...
** 42UE    Mid Suffolk ** 42UF    St. Edmundsbury ** 42UG    Suffolk Coastal ** 42UH    Waveney * 43 (UKJ23)   
Surrey Surrey () is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Greater London to the northeast, Kent to the east, East Sussex, East and West Sussex to the south, and Hampshire and Berkshire to the wes ...
** 43UB    Elmbridge ** 43UC    Epsom and Ewell ** 43UD   
Guildford Guildford () is a town in west Surrey, England, around south-west of central London. As of the 2011 census, the town has a population of about 77,000 and is the seat of the wider Borough of Guildford, which had around inhabitants in . The nam ...
** 43UE    Mole Valley ** 43UF    Reigate and Banstead ** 43UG    Runnymede ** 43UH    Spelthorne ** 43UJ    Surrey Heath ** 43UK    Tandridge ** 43UL    Waverley ** 43UM    Woking * 44 (UKG13)   
Warwickshire Warwickshire (; abbreviated Warks) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It is bordered by Staffordshire and Leicestershire to the north, Northamptonshire to the east, Ox ...
** 44UB    North Warwickshire ** 44UC    Nuneaton and Bedworth ** 44UD    Rugby ** 44UE    Stratford-on-Avon ** 44UF    Warwick * 45 (UKJ24)    West Sussex ** 45UB    Adur ** 45UC    Arun ** 45UD    Chichester ** 45UE    Crawley ** 45UF   
Horsham Horsham () is a market town on the upper reaches of the River Arun on the fringe of the Weald in West Sussex, England. The town is south south-west of London, north-west of Brighton and north-east of the county town of Chichester. Nearby to ...
** 45UG    Mid Sussex ** 45UH    Worthing * 46 (UKK15)    Wiltshire ** 46UB    Kennet ** 46UC    North Wiltshire ** 46UD   
Salisbury Salisbury ( , ) is a city status in the United Kingdom, cathedral city and civil parish in Wiltshire, England with a population of 41,820, at the confluence of the rivers River Avon, Hampshire, Avon, River Nadder, Nadder and River Bourne, Wi ...
** 46UE    Thamesdown ** 46UF    West Wiltshire * 47 (UKG12)   
Worcestershire Worcestershire ( , ; written abbreviation: Worcs) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It is bordered by Shropshire, Staffordshire, and the West Midlands (county), West ...
** 47UB    Bromsgrove ** 47UC    Malvern Hills ** 47UD    Redditch ** 47UE    Worcester ** 47UF   
Wychavon Wychavon () is a local government district in Worcestershire, England. The largest towns therein are Evesham and Droitwich Spa; the council is based in the town of Pershore. The district also includes numerous villages and surrounding rural ...
** 47UG    Wyre Forest


Wales

These codes became active following local government changes in 1996. * 00NA (UKL11)   
Isle of Anglesey Anglesey ( ; ) is an island off the north-west coast of Wales. It forms the bulk of the Principal areas of Wales, county known as the Isle of Anglesey, which also includes Holy Island, Anglesey, Holy Island () and some islets and Skerry, sker ...
* 00NC (UKL12)    Gwynedd * 00NE (UKL13)    Conwy * 00NG (UKL13)    Denbighshire * 00NJ (UKL23)    Flintshire * 00NL (UKL23)    Wrexham * 00NN (UKL24)    Powys * 00NQ (UKL14)   
Ceredigion Ceredigion (), historically Cardiganshire (, ), is a Principal areas of Wales, county in the West Wales, west of Wales. It borders Gwynedd across the River Dyfi, Dyfi estuary to the north, Powys to the east, Carmarthenshire and Pembrokeshire t ...
* 00NS (UKL14)   
Pembrokeshire Pembrokeshire ( ; ) is a Principal areas of Wales, county in the South West Wales, south-west of Wales. It is bordered by Carmarthenshire to the east, Ceredigion to the northeast, and otherwise by the sea. Haverfordwest is the largest town and ...
* 00NU (UKL14)   
Carmarthenshire Carmarthenshire (; or informally ') is a Principal areas of Wales, county in the South West Wales, south-west of Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. Carmarthen is the county town and administrative centre. ...
* 00NX (UKL18)   
Swansea Swansea ( ; ) is a coastal City status in the United Kingdom, city and the List of urban areas in the United Kingdom, second-largest city of Wales. It forms a Principal areas of Wales, principal area, officially known as the City and County of ...
* 00NZ (UKL17)    Neath Port Talbot * 00PB (UKL17)    Bridgend * 00PD (UKL22)    Vale of Glamorgan * 00PF (UKL15)    Rhondda Cynon Taff * 00PH (UKL15)   
Merthyr Tydfil Merthyr Tydfil () is the main town in Merthyr Tydfil County Borough, Wales, administered by Merthyr Tydfil County Borough Council. It is about north of Cardiff. Often called just Merthyr, it is said to be named after Tydfil, daughter of K ...
* 00PK (UKL16)    Caerphilly * 00PL (UKL16)   
Blaenau Gwent Blaenau Gwent (; ) is a Principal areas of Wales, county borough in the South East Wales, south-east of Wales. It borders the Local government in Wales, unitary authority areas of Monmouthshire and Torfaen to the east, Caerphilly County Borough ...
* 00PM (UKL16)    Torfaen * 00PP (UKL21)   
Monmouthshire Monmouthshire ( ; ) is a Principal areas of Wales, county in the South East Wales, south east of Wales. It borders Powys to the north; the English counties of Herefordshire and Gloucestershire to the north and east; the Severn Estuary to the s ...
* 00PR (UKL21)    Newport * 00PT (UKL22)    Cardiff


Scotland

These codes became active following local government changes in 1996. * 00QA (UKM10)    Aberdeen * 00QB (UKM10)    Aberdeenshire * 00QC (UKM21)    Angus * 00QD (UKM31/43)    Argyll and Bute * 00QE (UKM24)    Scottish Borders * 00QF (UKM22)    Clackmannanshire * 00QG (UKM31)    West Dunbartonshire * 00QH (UKM32)    Dumfries and Galloway * 00QJ (UKM21)    Dundee * 00QK (UKM33)   
East Ayrshire East Ayrshire (; ) is one of 32 unitary council areas of Scotland. It shares borders with Dumfries and Galloway, East Renfrewshire, North Ayrshire, South Ayrshire and South Lanarkshire. The headquarters of the council are located on London Roa ...
* 00QL (UKM31)    East Dunbartonshire * 00QM (UKM23)    East Lothian * 00QN (UKM35)    East Renfrewshire * 00QP (UKM25)   
Edinburgh Edinburgh is the capital city of Scotland and one of its 32 Council areas of Scotland, council areas. The city is located in southeast Scotland and is bounded to the north by the Firth of Forth and to the south by the Pentland Hills. Edinburgh ...
* 00QQ (UKM26)   
Falkirk Falkirk ( ; ; ) is a town in the Central Lowlands of Scotland, historically within the county of Stirlingshire. It lies in the Forth Valley, northwest of Edinburgh and northeast of Glasgow. Falkirk had a resident population of 32,422 at the ...
* 00QR (UKM22)   
Fife Fife ( , ; ; ) is a council areas of Scotland, council area and lieutenancy areas of Scotland, lieutenancy area in Scotland. A peninsula, it is bordered by the Firth of Tay to the north, the North Sea to the east, the Firth of Forth to the s ...
* 00QS (UKM34)   
Glasgow Glasgow is the Cities of Scotland, most populous city in Scotland, located on the banks of the River Clyde in Strathclyde, west central Scotland. It is the List of cities in the United Kingdom, third-most-populous city in the United Kingdom ...
* 00QT (UKM41/42/43)   
Highland Highlands or uplands are areas of high elevation such as a mountainous region, elevated mountainous plateau or high hills. Generally, ''upland'' refers to a range of hills, typically from up to , while ''highland'' is usually reserved for range ...
* 00QU (UKM35)    Inverclyde * 00QW (UKM23)    Midlothian * 00QX (UKM10/42)    Moray * 00QY (UKM33/43)    North Ayrshire * 00QZ (UKM36)    North Lanarkshire * 00RA (UKM45)    Orkney Islands * 00RB (UKM27)   
Perth and Kinross Perth and Kinross (; ) is one of the 32 council areas of Scotland, and a Lieutenancy areas of Scotland, lieutenancy area. It is bordered by Highland (council area), Highland and Aberdeenshire to the north, Angus, Scotland, Angus, Dundee, and F ...
* 00RC (UKM35)    Renfrewshire * 00RD (UKM46)    Shetland Islands * 00RE (UKM37)    South Ayrshire * 00RF (UKM38)    South Lanarkshire * 00RG (UKM27)   
Stirling Stirling (; ; ) is a City status in the United Kingdom, city in Central Belt, central Scotland, northeast of Glasgow and north-west of Edinburgh. The market town#Scotland, market town, surrounded by rich farmland, grew up connecting the roya ...
* 00RH (UKM28)    West Lothian * 00RJ (UKM44)    Eilean Siar (Western Isles)


Northern Ireland

* 95A (UKN04)    Derry * 95B (UKN04)    Limavady * 95C (UKN04)    Coleraine * 95D (UKN04)    Ballymoney * 95E (UKN04)    Moyle * 95F (UKN03)    Larne * 95G (UKN03)    Ballymena * 95H (UKN05)    Magherafelt * 95I (UKN05)    Cookstown * 95J (UKN04)    Strabane * 95K (UKN05)    Omagh * 95L (UKN05)    Fermanagh * 95M (UKN05)    Dungannon and South Tyrone * 95N (UKN03)    Craigavon * 95O (UKN05)    Armagh * 95P (UKN05)    Newry and Mourne * 95Q (UKN03)    Banbridge * 95R (UKN03)    Down * 95S (UKN02)    Lisburn * 95T (UKN03)    Antrim * 95U (UKN02)    Newtownabbey * 95V (UKN02)    Carrickfergus * 95W (UKN02)    North Down * 95X (UKN03)    Ards * 95Y (UKN02)    Castlereagh * 95Z (UKN01)   
Belfast Belfast (, , , ; from ) is the capital city and principal port of Northern Ireland, standing on the banks of the River Lagan and connected to the open sea through Belfast Lough and the North Channel (Great Britain and Ireland), North Channel ...


References

{{Reflist


External links


ONS Beginners' Guide to UK Geography
Geocodes Office for National Statistics 2011 disestablishments in the United Kingdom